What is the difference between angular.copy() and an assignment (=)?

Question

I want to assign some values when a button click event happens via event parameter:

$scope.update = function(context) {
    $scope.master = context;
};
         


        

Answer 1

When you manipulate primitive types (like int) in Javascript, = and angular.copy are the same as any assignment results in copying the value of the variable.

When you manipulate objects in Javascript, = assign a reference to the existing object to the variable and angular.copy is copying, that means creating a new object with the same properties and values and assigning the new object's reference to the variable.